I manage a Jira Service Desk project that releases closed issues at the same time that our development team releases a new version of our product. I used to be able to use the Release button on my Kanban board to create a version that matches the version that we are putting into production, but now when I try to do this I get this message:

The issues I'm trying to release all have the same fixVersion, so I'm not sure what the above message is all about.
When I click the button, I get a not allowed message. I'm an Admin on Jira Software projects as well, so that message doesn't make sense.
How can I clean up my Done kanban column without having to use quick filters that need to be set each time I load the board page?